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PostPosted: Sat Jul 18, 2026 5:17 pm 
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The EMC (equalisation moisture content of wood varies not only with the RH of its environment, but even for the same RH, it will vary with the temperature of that environment. It's not a huge difference, but it might make a difference with summer to winter temperature swings temperature swings, for example modal measurements
https://www.woodworkerssource.com/wood-moisture-content.html?srsltid=AfmBOop7OsjWez5DYsRq1SNl_fZMrJKv5HMQ0FqmFeaTwQNKqd2PUxyw
Brock Pauling promised a chart relating to this on FB to anyone requesting it, but I didn't get one despite requesting it. Just found it myself.

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The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.



These users thanked the author Colin North for the post: Kbore (Mon Jul 20, 2026 4:38 pm)
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PostPosted: Sun Jul 19, 2026 3:14 am 
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Good to know. Looks like 30F to 100F is equivalent to about a 5% RH difference.

What makes a bigger difference is the direction of acclimation. Equivalent to about 18% RH difference, i.e. going from tropical humidity down to 50% is equivalent to going from dry winter up to 68%, or going from winter up to 50% is equivalent to going from tropical down to 32%.


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These users thanked the author DennisK for the post: Kbore (Mon Jul 20, 2026 4:39 pm)
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PostPosted: Sun Jul 19, 2026 5:54 am 
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So wood is STILL trying to be alive long after getting cut down.

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These users thanked the author Chris Pile for the post: Durero (Mon Jul 20, 2026 8:22 pm)
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PostPosted: Sun Jul 19, 2026 9:25 am 
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Chris Pile wrote:
So wood is STILL trying to be alive long after getting cut down.

laughing6-hehe

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The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


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